14139445 has 8 divisors (see below), whose sum is σ = 17001144. Its totient is φ = 11289024.

The previous prime is 14139431. The next prime is 14139449. The reversal of 14139445 is 54493141.

14139445 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2022084 + 12117361 = 1422^2 + 3481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14139445 - 2⁵ = 14139413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14139449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (2125143).

Almost surely, 2^14139445 is an apocalyptic number.

It is an amenable number.

14139445 is a deficient number, since it is larger than the sum of its proper divisors (2861699).

14139445 is an equidigital number, since it uses as much as digits as its factorization.

14139445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639.

The product of its digits is 8640, while the sum is 31.

The square root of 14139445 is about 3760.2453377406. The cubic root of 14139445 is about 241.8117801999.

The spelling of 14139445 in words is "fourteen million, one hundred thirty-nine thousand, four hundred forty-five".